CN102163866A - Mobile phone battery charger capable of timing - Google Patents
Mobile phone battery charger capable of timing Download PDFInfo
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- CN102163866A CN102163866A CN2011101204286A CN201110120428A CN102163866A CN 102163866 A CN102163866 A CN 102163866A CN 2011101204286 A CN2011101204286 A CN 2011101204286A CN 201110120428 A CN201110120428 A CN 201110120428A CN 102163866 A CN102163866 A CN 102163866A
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Abstract
The invention discloses a mobile phone battery charger capable of timing, comprising a charging circuit and a control part, wherein a self-activation switch power supply circuit is utilized as the charging circuit; the control part uses a 51-type singlechip as a core control component; the signal input end of the control part is connected with a key module and a reset key; the output end of the control part is connected with a relay control circuit, a display module and an alarming circuit; and the relay control circuit is connected with a charging circuit switch. A self-activation oscillation circuit used by the charging circuit can stably and effectively charge a mobile phone battery, does not cause impact to instantaneous high level, and can protect the safety of the battery; a single-pole double-throw switch on the main circuit can directly charge without the relay circuit, namely irregularly charging, and can control the charging through the relay circuit, namely regularly charging. The integral device is reasonable in design, simple and practical, low in cost, simple in manufacturing, and suitable for popularizing and using; and the mobile phone battery charger can control the charging time through setting.
Description
Technical field
The present invention relates to a kind ofly, belong to the electrical equipment control field by monolithic processor controlled battery charger for mobile phone that can be regularly.
Background technology
At present, the battery charger for mobile phone on the market has two kinds.A kind of is the special charger that designs at different mobile phones, the characteristics of this charger are to detect battery of mobile phone, regulate the charging environment automatically according to the state of battery, and transfer idle condition automatically to after charging is finished, low in energy consumption, and can not cause damage to battery; But its shortcoming is also apparent in view, is exactly that the cost cost is too high, and the used charger performance requirement of the mobile phone of different model is also different, is unfavorable for popularizing.Another is exactly " universal charger " that common on the market nominal can be charged at nearly all battery of mobile phone, and this charger is cheap, simplicity of design, and can both charge to most batteries of mobile phone, very convenient really; But this charger but has very big risk, because what it adopted is fixed current output, and shortage is to the detection of battery capacity, can not stop automatically, cellular li-ion battery there is very big harm, the long-term use useful life that can reduce battery is and if long-time charging also can cause battery short circuit to set off an explosion and the possibility of fire.
Summary of the invention
Purpose of the present invention is exactly to design a kind of can various batteries of mobile phone chargings in order to overcome the deficiency in the above-mentioned technology, battery charger for mobile phone that can self-timing.
Purpose of the present invention realizes by the following technical solutions: a kind of regularly battery charger for mobile phone, form by charging circuit and control section, and it is characterized in that: charging circuit adopts self-excited switching power supply circuit; Control section is a core control part with 51 single-chip microcomputers, and its signal input part connects key-press module and reset key, and output is connected with control relay circuit, display module, warning circuit, and control relay circuit connects the charging circuit switch.
Described charging circuit, power supply are the 220V alternating current, and its fusing resistor (R1) model adopts 10 Ω, 2W, and power supply constitutes the halfwave rectifier filter circuit by diode (D1) and capacitor (C1); Circuit anode after the rectification is connected to elementary winding (L1) upper end of transformer (E6), and elementary winding (L1) lower end is connected to the collector electrode of triode (Q2); Be parallel with starting resistance (R2) on the main circuit after the rectification, starting resistance (R2) is connected to the base stage of triode (Q2); The negative pole of circuit connects elementary winding (L2) upper end of transformer (E6), and elementary winding (L2) lower end is connected to the base stage of triode (Q2) behind resistance (R5) and capacitor (C4); Triode (Q1), diode (D3), resistance (R4) are formed current foldback circuit jointly.
Described control relay circuit, be to control by single-phase solid state relay of one 51 Micro Controller Unit (MCU) driving, its power unit adopts single-pole double-throw switch (SPDT), wherein node (S1) is direct-connected to charging circuit, and node (S2) is connected to charging circuit after being connected to relay (SW) control switch; Relay (SW) induction end connects the base stage of triode (Q4), and the collector electrode of triode (Q4) is connected to the P3.5 pin of 51 single-chip microcomputers, is connected to the P3.0 pin of 51 single-chip microcomputers behind the emitter capacitor of connection (C6); At the induction end of relay buzzer in parallel, buzzer connects the base stage of triode (Q3), and the collector electrode of triode (Q3) is connected to the P3.4 pin of single-chip microcomputer, and emitter is connected to the P3.0 pin of 51 single-chip microcomputers.
Characteristics of the present invention: the self-maintained circuit that charging circuit adopts; can effectively charge steadily to battery of mobile phone; and can not cause the impact of instantaneous high level to battery; protected the fail safe of battery; single-pole double-throw switch (SPDT) both can directly not dash by relay circuit on the main circuit; it is the not timing charging; also can be by relay circuit control charging, i.e. regularly charging, whole device is reasonable in design; simple and practical; though do not consider automatic detection battery capacity part in the design, can be by setting the time of controlling charging, and also with low cost; make simply, be fit to promote the use of.
Description of drawings:
Fig. 1 is a structural principle block diagram of the present invention.
Fig. 2 is a charging circuit schematic diagram of the present invention.
Fig. 3 is a control relay circuit schematic diagram of the present invention.
Embodiment:
As shown in Figure 1, a kind of regularly battery charger for mobile phone is set to regularly to charge and two kinds of charging modes of not timing charging.When adopting the not timing charging modes, civil power AC220V is directly connected to charging circuit battery is charged; And when the user not on charger next door or when having no time to attend to, then can adopt timing mode, key-press module by key circuit is set timing, and show with the LED display circuit, civil power AC220V will be connected to charging circuit by relay in timing, when reaching timing, single-chip microcomputer will send and feed back signal to relay and warning circuit, alarm equipment alarm, relay disconnects, charging circuit stops charging, and charging circuit at this moment is in off-position fully, can not cause any infringement to battery.
As shown in Figure 2, (R1) be the fusing resistor of one 10 Ω, 2W, when input is short-circuited fault, can play overcurrent protection.Diode (D1) and capacitor (C1) constitute the halfwave rectifier filter circuit, input AC220V voltage obtains about 300V voltage after diode (D1) halfwave rectifier, capacitor (C1) filtering, 300V voltage is added to triode (Q2) collector electrode through the elementary winding of switch transformer (E6) (L1), simultaneously be added to triode (Q2) base stage through starting resistance (R2), make triode (Q2) enter the lightly conducting state, the induced electromotive force of bearing just down on producing in the elementary winding (L1) produces in the elementary winding (L2) simultaneously to go up and bears positive induced electromotive force down.To triode (Q2) base stage, triode (Q2) enters saturation condition rapidly to induced electromotive force in the elementary winding (L2) through capacitor (C4), resistance (R5) positive feedback.Between the period of saturation,, produce stable induced electromotive force in the then elementary winding (L2) at triode (Q2) because the electric current approximately linear increases in the elementary winding (L1).This electromotive force is given electric capacity (C4) charging through the base stage of resistance (R5), resistance (R4), triode (Q2) to emitter, charging along with electric capacity (C4), triode (Q2) base voltage descends gradually, (Q2) withdraws from saturation condition until triode, the electric current that flows through in the elementary winding (L1) reduces, induced electromotive force polarity inversion in elementary winding (L1) and the elementary winding (L2), under the positive feedback effect of resistance (R5) and electric capacity (C4), triode (Q2) retreats to cut-off state by saturation condition rapidly.At this moment, 300V voltage through resistance (R2), resistance (R5), elementary winding (L2) to electric capacity (C4) reverse charging, electric capacity (C4) left end current potential rises gradually, when rising to certain value, under the effect of resistance (R2), triode (Q2) conducting once more repeats said process, so go round and begin again, form self-oscillation.In triode (Q2) conduction period, the induced electromotive force polarity in the secondary winding (L3) be last negative down just, diode (D6) ends; At triode (Q2) between the off period, the induced electromotive force polarity in the secondary winding (L3) is last negative just down, and diode (D6) conducting outwards provides the power supply of one group of 6V/0.5A.In addition, resistance (R4), diode (D3) and triode (Q1) are formed current foldback circuit, when excessive as if the electric current that flows through triode (Q2); pressure drop on the resistance (R4) increases; triode (Q1) conducting, triode (Q2) ends, and damages to prevent triode (Q2) overcurrent.
As shown in Figure 3, adopt the not timing charging when switch (K1) pushes node (S1), AC220V is directly connected to charging circuit and charges; When pushing node (S2), switch (K1) then controls by relay.Control procedure is as follows: when timing was less than, P3.5 pin output low level on 51 single-chip microcomputers made triode (Q4) conducting, and relay is started working, and switches on to charging circuit; When reaching timing setting during the time, the P3.5 pin is exported high level, and triode (Q4) ends, and relay does not have the electric current input, and then relay is not worked, and charging circuit stops charging.In addition, triode (Q3) and buzzer have been formed warning circuit, when timing is less than, and P3.4 pin output high level, triode (Q3) ends, and buzzer is not worked; And when reaching timing, P3.4 pin output low level, triode (Q3) conducting, the buzzer vibration sounding sends 30 seconds chimes of dooms, reminds user's timing to arrive.
Claims (3)
1. a battery charger for mobile phone regularly is made up of charging circuit and control section, it is characterized in that: charging circuit employing self-excited switching power supply circuit; Control section is a core control part with 51 single-chip microcomputers, and its signal input part connects key-press module and reset key, and output is connected with control relay circuit, display module, warning circuit, and control relay circuit connects the charging circuit switch.
2. a kind of regularly battery charger for mobile phone according to claim 1, it is characterized in that: described charging circuit, power supply is the 220V alternating current, and its fusing resistor (R1) model adopts 10 Ω, 2W, and power supply constitutes the halfwave rectifier filter circuit by diode (D1) and capacitor (C1); Circuit anode after the rectification is connected to elementary winding (L1) upper end of transformer (E6), and elementary winding (L1) lower end is connected to the collector electrode of triode (Q2); Be parallel with starting resistance (R2) on the main circuit after the rectification, starting resistance (R2) is connected to the base stage of triode (Q2); The negative pole of circuit connects elementary winding (L2) upper end of transformer (E6), and elementary winding (L2) lower end is connected to the base stage of triode (Q2) behind resistance (R5) and capacitor (C4); Triode (Q1), diode (D3), resistance (R4) are formed current foldback circuit jointly.
3. a kind of regularly battery charger for mobile phone according to claim 1, it is characterized in that: described control relay circuit, be to control by single-phase solid state relay of one 51 Micro Controller Unit (MCU) driving, its power unit adopts single-pole double-throw switch (SPDT), wherein node (S1) is direct-connected to charging circuit, and node (S2) is connected to charging circuit after being connected to relay (SW) control switch; Relay (SW) induction end connects the base stage of triode (Q4), and the collector electrode of triode (Q4) is connected to the P3.5 pin of 51 single-chip microcomputers, is connected to the P3.0 pin of 51 single-chip microcomputers behind the emitter capacitor of connection (C6); At the induction end of relay buzzer in parallel, buzzer connects the base stage of triode (Q3), and the collector electrode of triode (Q3) is connected to the P3.4 pin of single-chip microcomputer, and emitter is connected to the P3.0 pin of 51 single-chip microcomputers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101204286A CN102163866A (en) | 2011-05-11 | 2011-05-11 | Mobile phone battery charger capable of timing |
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| CN2011101204286A CN102163866A (en) | 2011-05-11 | 2011-05-11 | Mobile phone battery charger capable of timing |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102436632A (en) * | 2011-11-22 | 2012-05-02 | 山东大学 | Electrical and electronic experimental platform device and application method thereof |
| CN105449749A (en) * | 2015-11-30 | 2016-03-30 | 芜湖锐芯电子科技有限公司 | APO (Automatic Power Off) phone charger |
| CN105449801A (en) * | 2015-11-30 | 2016-03-30 | 芜湖锐芯电子科技有限公司 | Power-off protection-type mobile phone charger |
| CN105449802A (en) * | 2015-11-30 | 2016-03-30 | 芜湖锐芯电子科技有限公司 | Infrared remote power-off mobile phone charger |
| CN106944593A (en) * | 2017-05-17 | 2017-07-14 | 东风精密铸造安徽有限公司 | A kind of investment casting formwork water boils dewaxing duration control method |
| CN108565927A (en) * | 2018-05-23 | 2018-09-21 | 江苏金智酷电子科技有限公司 | A kind of phone charger with timing function |
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| JPH05211730A (en) * | 1992-01-30 | 1993-08-20 | Sanyo Electric Works Ltd | Uninterruptible power supply |
| CN2766434Y (en) * | 2004-12-17 | 2006-03-22 | 吴良安 | Handset charge protection timer |
| CN200947553Y (en) * | 2006-03-31 | 2007-09-12 | 昆达电脑科技(昆山)有限公司 | Charging system with timing power-off function |
| CN201430458Y (en) * | 2009-03-31 | 2010-03-24 | 任佳宝 | Multi-purpose charge controller with automatic power-off function |
| CN101908756A (en) * | 2010-09-15 | 2010-12-08 | 山东电力集团公司潍坊供电公司 | Charging protector |
| CN201726168U (en) * | 2010-07-09 | 2011-01-26 | 马俊 | Self-help mobile phone charging device |
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2011
- 2011-05-11 CN CN2011101204286A patent/CN102163866A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05211730A (en) * | 1992-01-30 | 1993-08-20 | Sanyo Electric Works Ltd | Uninterruptible power supply |
| CN2766434Y (en) * | 2004-12-17 | 2006-03-22 | 吴良安 | Handset charge protection timer |
| CN200947553Y (en) * | 2006-03-31 | 2007-09-12 | 昆达电脑科技(昆山)有限公司 | Charging system with timing power-off function |
| CN201430458Y (en) * | 2009-03-31 | 2010-03-24 | 任佳宝 | Multi-purpose charge controller with automatic power-off function |
| CN201726168U (en) * | 2010-07-09 | 2011-01-26 | 马俊 | Self-help mobile phone charging device |
| CN101908756A (en) * | 2010-09-15 | 2010-12-08 | 山东电力集团公司潍坊供电公司 | Charging protector |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102436632A (en) * | 2011-11-22 | 2012-05-02 | 山东大学 | Electrical and electronic experimental platform device and application method thereof |
| CN105449749A (en) * | 2015-11-30 | 2016-03-30 | 芜湖锐芯电子科技有限公司 | APO (Automatic Power Off) phone charger |
| CN105449801A (en) * | 2015-11-30 | 2016-03-30 | 芜湖锐芯电子科技有限公司 | Power-off protection-type mobile phone charger |
| CN105449802A (en) * | 2015-11-30 | 2016-03-30 | 芜湖锐芯电子科技有限公司 | Infrared remote power-off mobile phone charger |
| CN106944593A (en) * | 2017-05-17 | 2017-07-14 | 东风精密铸造安徽有限公司 | A kind of investment casting formwork water boils dewaxing duration control method |
| CN108565927A (en) * | 2018-05-23 | 2018-09-21 | 江苏金智酷电子科技有限公司 | A kind of phone charger with timing function |
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Application publication date: 20110824 |